docs: replace manual for loop in examples

[hrshya]

Resolves none .

Description

What is the purpose of this pull request?

This pull request:

• replaces manual for loop in examples for stats/base/dists/planck/* packages.

Related Issues

Does this pull request have any related issues?

This pull request:

• resolves no related issues.

Questions

Any questions for reviewers of this pull request?

No.

Other

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No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

---

@stdlib-js/reviewers

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/planck/cdf	$\color{green}279/279$ $\color{green}+0.00%$	$\color{green}25/25$ $\color{green}+0.00%$	$\color{green}4/4$ $\color{green}+0.00%$	$\color{green}279/279$ $\color{green}+0.00%$
stats/base/dists/planck/entropy	$\color{green}170/170$ $\color{green}+0.00%$	$\color{green}8/8$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}170/170$ $\color{green}+0.00%$
stats/base/dists/planck/kurtosis	$\color{green}162/162$ $\color{green}+0.00%$	$\color{green}8/8$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}162/162$ $\color{green}+0.00%$
stats/base/dists/planck/logcdf	$\color{green}283/283$ $\color{green}+0.00%$	$\color{green}25/25$ $\color{green}+0.00%$	$\color{green}4/4$ $\color{green}+0.00%$	$\color{green}283/283$ $\color{green}+0.00%$
stats/base/dists/planck/logpmf	$\color{green}278/278$ $\color{green}+0.00%$	$\color{green}21/21$ $\color{green}+0.00%$	$\color{green}4/4$ $\color{green}+0.00%$	$\color{green}278/278$ $\color{green}+0.00%$
stats/base/dists/planck/mean	$\color{green}170/170$ $\color{green}+0.00%$	$\color{green}8/8$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}170/170$ $\color{green}+0.00%$
stats/base/dists/planck/median	$\color{green}163/163$ $\color{green}+0.00%$	$\color{green}8/8$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}163/163$ $\color{green}+0.00%$
stats/base/dists/planck/mgf	$\color{green}252/252$ $\color{green}+0.00%$	$\color{green}17/17$ $\color{green}+0.00%$	$\color{green}4/4$ $\color{green}+0.00%$	$\color{green}252/252$ $\color{green}+0.00%$
stats/base/dists/planck/mode	$\color{green}161/161$ $\color{green}+0.00%$	$\color{green}8/8$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}161/161$ $\color{green}+0.00%$
stats/base/dists/planck/pmf	$\color{green}276/276$ $\color{green}+0.00%$	$\color{green}21/21$ $\color{green}+0.00%$	$\color{green}4/4$ $\color{green}+0.00%$	$\color{green}276/276$ $\color{green}+0.00%$
stats/base/dists/planck/quantile	$\color{green}286/286$ $\color{green}+0.00%$	$\color{green}25/25$ $\color{green}+0.00%$	$\color{green}4/4$ $\color{green}+0.00%$	$\color{green}286/286$ $\color{green}+0.00%$
stats/base/dists/planck/skewness	$\color{green}162/162$ $\color{green}+0.00%$	$\color{green}8/8$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}162/162$ $\color{green}+0.00%$
stats/base/dists/planck/stdev	$\color{green}166/166$ $\color{green}+0.00%$	$\color{green}8/8$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}166/166$ $\color{green}+0.00%$
stats/base/dists/planck/variance	$\color{green}165/165$ $\color{green}+0.00%$	$\color{green}8/8$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}165/165$ $\color{green}+0.00%$

The above coverage report was generated for the changes in this PR.

[kgryte]

LGTM